MBP Late 2011 fans running at 6000 RPM almost constantly

[aaron6393]

Hi all,

The fans on my Late 2011 MacBook Pro are always on. Even when Safari is the only application I have open. I've taken it to the Genius Bar, cleaned them out with compressed air, and I have my laptop up on a stand to help with ventilation. Nothing helps.

Performance gets even worse when I connect to my Thunderbolt Display. I've even taken in my MBP and TBD to the Genius Bar and showed them how problematic it is, only to get the same response.

I don't know what else I can do to try and fix this. I've attached a screenshot from iStat showing the fan speed. Thanks in advance for any help!

 

[Audit13]

The radeon gpu could be in the process of failing, the sensors are failing, or both.

 

[aaron6393]

The radeon gpu could be in the process of failing, the sensors are failing, or both.

Thanks for replying. Should I take it in to an authorized repair shop to see if they can fix it?

 

[Audit13]

I would take it to a place that can perform logic board repairs.

You could also try disabling the radeon gpu to see if that solves the problem. If it does, you will have to decide whether replacing the gpu makes sense.

https://forums.macrumors.com/thread...ntel-integrated-gpu-efi-variable-fix.2037591/

 

[Queen6]

Likely it's related to a sensor, as the temperatures reported are not high enough to trigger the fans spooling up. Have you reset the SMC?

Link https://support.apple.com/en-sg/HT201295

Fans spooling up is not indicative of imminent dGPU failure, if this was the case you will observe graphical anomalies, artefacting, black screen, system instability or full on failure to startup. Try reseting the SMC, if that makes no difference, run Apple's diagnostics.

Fans are designed to run at full speed, the system restricts the RPM as required, if a sensor has issue the fans will by default spool up to max RPM. If this behaviour is only happening with specific applications, create a new user account and test to see if the same occurs.

Q-6